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All-round service – with no ifs and buts

With Zuse Hüller Hille, the functionality and efficiency of your production are in highly professional hands. Our service team ensures that your machine tool operates meeting highest demands in quality, at the same time reducing down times as far as possible. We ramp up your production for the future! Our service includes all machine types:

Application Examples

Gear case,
drive technology

Commercial vehicle
rear axle housing

Gear case,
wheel loader

Bearing housing

Gear housing,
tractor

Commercial vehicle gear cover,
Commercial vehicle gear case

Oil pan

Crankcase

Commercial vehicle
rear axle

Commercial vehicle
rear axle

Gear case,
drive technology

  • Work piece: gear case
  • Material: GG 25
  • Time per piece: Op 10 ~ 15 min / Op 20 ~ 32 min
  • Time per piece: Op 10 ~ 15 min / Op 20 ~ 32 min
  • Machines: NBH 1200
  • Process: complete machining (milling, drilling, winding, drilling out) in two clamping devices
  • Gear spindle, 5000 rpm, drive power 80/60 kW (40%/100% ED), torque 2600/2200 Nm (40%/100% ED)
  • Raw part measurement and automatic compensation with Renishaw caliper
  • Dry milling of drive and rear end, parallelism < 0,05 mm
  • Transfer die for roughing and finishing
  • Precision on cover and alignment < 0,02 mm
  • Max. tool weight 50 kg, stalling torque 100 Nm

Commercial vehicle
rear axle housing

  • Work piece: rear axle housing
  • Material: GGG 40
  • Time per piece: Op 10 ~ 9,3 min (2 work pieces) Op 20 ~ 19,45 min
  • Branch: commercial vehicles
  • Machines: NBH 630
  • Process: complete machining (milling, drilling, winding, drilling out) in two clamping devices
  • Process: complete machining (milling, drilling, winding, drilling out) in two clamping devices
  • Manual assembly of bearing cover
  • In step 2, the bearing boring is pre-machined and then finished

Gear case,
wheel loader

  • Work piece: gear case
  • Time per piece: Op 10 – 12,9 min, Op 20 – 46,9 min
  • Branch: drive technology
  • Machines: 2 x NBH 6+
  • Disk magazine with 120 tool pockets (2 x 60 tools)
  • Gear spindle, 10 000 rpm, drive power 46 kW (40% ED), torque 1130 Nm (40% ED)

Bearing housing

  • Work piece: gear cover gear case
  • Material: GG
  • Time per piece: housing Op 10 – 13,83 min, housing Op 20 – 6,25 min, cover – 5,91 min, mounted housing with cover – 9,6 min

  • MAPAL reamers for semi- and fine machining of axis and bearing
  • Precision:

    • Roundness and concentricity of bore diameter (120, 140 and 180 mm): Ø 0,008 mm
    • Axis-parallelism: 0,012 mm

Gear housing,
tractor

  • Work piece: tractor gear housing rear axle housing
  • Material: GG 25
  • Capacity: 180 work pieces per day
  • Branch: agricultural machinery
  • System: automated production line
  • Machines: 3 x NBH 630-60, Op 10 5 x NBH 630-3, Op 20 3 x NBH 800 5X (swivel rotary table), Op 30
  • Automation: gantry loader with three carts (double gripper in h-array)

Commercial vehicle gear cover,
Commercial vehicle gear case

  • Work piece: gear cover gear case
  • Material: GG
  • Time per piece: housing Op 10 – 13,83 min, housing Op 20 – 6,25 min, cover – 5,91 min, mounted housing with cover – 9,6 min
  • Branch: commercial vehicle industry
  • Machines: 4 x NBH 6

Oil pan

  • Work piece: oil pan (passenger vehicle)
  • Material: aluminum
  • Time per piece: Op 10 ~ 3,7 min, Op 20 ~ 3,9 min
  • Branch: foundry, supplier automotive
  • Machines: NBH 5, NBH 500

Description:

  • Machines: NBH 5, NBH 500
  • NBH 5 with disk magazine, 40 tools
  • Motor spindle 15000 rpm
  • Tool holder HSK 63
  • 70 bar coolant system
  • Renishaw work piece caliper inside working area
  • Automatic door at set-up station with loader interface for automatic loading and unloading of machine

Crankcase

  • Work piece: crankcase (passenger vehicle)
  • Material: aluminum
  • Time per piece: Op 10 ~ 35,3 s, Op 20 ~ 2,9 min
  • Branch: foundry, supplier automotive
  • Machines: NBH 5, NBH 500
  • Complete machining (milling, drilling, winding, roughing) of the crankcase in two clamping devices
  • NBH 5 with disk magazine, 40 tools
  • Motor spindle 15000 rpm
  • Tool holder HSK 63
  • 70 bar coolant system
  • Renishaw work piece caliper
  • Automatic door at set-up station with loader interface for automatic loading and unloading of machine

Commercial vehicle
rear axle

  • Work piece: commercial vehicle rear axle
  • Material: forged steel
  • Time per piece: pre-machining – 6,0 min, finishing – 6,8 min
  • Branch: automotive (commercial vehicles)
  • Unit: production line with gantry loader
  • Machines: 5 x NBH 630
  • Precision requirements: cmk 1,67
  • Gear spindle with 120 mm bearing diameter

Pre-machining (Op 10) of the surfaces of the jaws double panes
Clamping device Op 60 by Röhm for the holding of two identical work pieces

Commercial vehicle
rear axle

  • Work piece: rear axle
  • Material: GGG 40 and GGG 60
  • Time per piece: ca. 20 min
  • Branch: commercial vehicle industry
  • Machine: 5 x NBH 630
  • Process: milling, boring, reaming, finishing; the capacity is ~ 60.000 work pieces p.a., per machine 12000 work pieces
  • Specifics tool kit for dry and wet machining: minimal quantity lubrication 2-channel system

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